The outside of the circle is color temp 20k, 17k, 14k, ETC.
The inner part of circle is for intensity.
You can stick with the sliders or this screen to set a base temp/power and customize from there using sliders.
If you use sliders than go to this screen it will show you the approximate color temp you are using. Fair warning, it will change your slider settings
depending upon where you were at on your ramp or possibly add another point.